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首页> 外文期刊>Journal of Applied Polymer Science >Kinetics of the thermal degradation and thermal stability of conductive silicone rubber filled with conductive carbon black
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Kinetics of the thermal degradation and thermal stability of conductive silicone rubber filled with conductive carbon black

机译：填充导电炭黑的导电硅橡胶的热降解动力学和热稳定性

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The kinetics of the thermal degradation and thermal stability of conductive silicone rubber filled with conductive carbon black was investigated by thermogravimetric analysis in a flowing nitrogen atmosphere at a heating rate of 5degreesC/min. The rate parameters were evaluated by the method of Freeman-Carroll. The results show that the thermal degradation of conductive silicone rubber begins at about 350degreesC and ends at about 600degreesC. The thermal degradation is multistage, in which zero-order reactions are principal. The kinetics of the thermal degradation of conductive silicone rubber has relevance to its loading of conductive carbon black. The activation energies are temperature-sensitive and their sensitivity to temperature becomes weak as temperature increases. In addition, the conductive silicone rubber filled with conductive carbon black has better thermal stability than that of silicone rubber without any fillers. Also, conductive silicone rubber filled with conductive carbon black has better thermal stability than that of silicone rubber filled with the same amount of silica. (C) 2003 Wiley Periodicals, Inc. [References: 25]
机译：通过在流动的氮气气氛中以5℃/ min的加热速率进行热重分析，研究了填充有导电炭黑的导电硅橡胶的热降解动力学和热稳定性。速率参数通过Freeman-Carroll方法评估。结果表明，导电硅橡胶的热降解始于约350摄氏度，终止于约600摄氏度。热降解是多阶段的，其中零级反应是主要的。导电硅橡胶热降解的动力学与其导电炭黑的负载有关。活化能对温度敏感，并且随着温度升高它们对温度的敏感性变弱。另外，填充有导电炭黑的导电硅橡胶比没有填充剂的硅橡胶具有更好的热稳定性。另外，填充有导电炭黑的导电硅橡胶比填充有相同量的二氧化硅的硅橡胶具有更好的热稳定性。 （C）2003 Wiley Periodicals，Inc. [参考：25]

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